Best UK Progressive Jackpot Slots May 2026
Here at Bookies.com, we’ve put together a list of some of the best progressive jackpot games that you can play at the best UK online casinos right now.
Progressive jackpots are amongst the most exciting slots in the world. The prizes increase every time someone spins, so they can reach into the millions of pounds. Progressive jackpots come with a whole lot of fun themes, and even special features like bonus rounds and jackpot bonus games to make gameplay all the more thrilling.
#ad. 18+. Gamble Responsibly. Gambleaware.org.New players only. Min dep £10. Wager req. 10x. 18+. T&Cs apply.
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#ad. 18+. UK only. From 17.02.2025. New Casino players only. Deposit (certain types excluded) and Bet £10+ on qualifying games to get 100 Free Spins (selected games, value £0.10 each, 48 hrs to accept, valid for 7 days). Restrictions and T&Cs apply. Please, Gamble Responsibly
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18+. New players only. Min. deposit £20. Welcome Offer is 75 free spins on Big Bass Bonanza on your first deposit. To claim the free spins you also need to wager a minimum of £10 of your first deposit on slots. Free spins must be used within 72 hours. Winnings from free spins credited as cash funds and capped at £100. These cash funds are immediately withdrawable. Affordability checks apply. Terms apply. Please gamble responsibly. BeGambleAware.org
#ad. 18+. Gamble Responsibly. Gambleaware.org.*New members only. Must sign up via this offer link only. Deposit min £10+ cash & wager on any Slot Game within 7 days of sign-up. Accept Free Spins (£0.10p, 7-day expiry) via pop-up within 7 days of qual. Use on Eye of Horus only. T&Cs and deposit exclusions apply. Bet Responsibly. GambleAware.org. 18+
#ad. 18+. Gamble Responsibly. Gambleaware.org. New Customers Only. Stake £10+ across any QuinnCasino games, within 7 days of registration. Get 50 Free Spins (£0.10p spin value) on “Big Bass Splash”, valid for 7 days. Free Spins winnings are real cash, max. £100. UK 18+ T&Cs Apply. Gamble Responsibly. GambleAware.org
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#ad. 18+. Gamble Responsibly. Begambleaware.org. The Welcome Bonus is only available to newly registered players who make a minimum initial deposit of £10. T&C's Apply
Promo Code: CROWN50
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New customers. Deposit & spend min £20 (ex. PayPal & Paysafe) on Fishin Frenzy the Big Catch 2, get 200 Free Spins @10p, 10x wagering. Max wins £100. T&Cs apply
#ad. 18+. Gamble Responsibly. Gambleaware.org. New players only. Min dep £10 (Excl. PayPal & Paysafe) & spend £10, to get 100 Free Spins. 10x wagering. Max win £200. T&Cs apply.
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Stake £10 or more in total on any non-jackpot slots within 7 days. The Free Spins can only be used on Big Bass Splash. Wins from Free Spins will be paid into the cash balance. Free Spins valued at 10p per spin and are valid for 3 days after being credited. Full T&Cs apply. Full details can be found here.
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#ad. 18+. Gamble Responsibly. Gambleaware.org. Min. £10 in lifetime deposits required. Offer must be claimed within 30 days of registering a bet365 account. Select prizes of 5, 10, 20 or 50 Free Spins; 10 selections available within 20 days, 24 hours between each selection. Max. prize, game restrictions, time limits and T&Cs apply. Registration Required.
#ad. 1Get 50% back on first day casino losses as a free bonus funds up to £50. To be credited within 24 hours. Max Casino Bonus per customer £/€50. 5x wagering requirement applies to Casino Bonus. Customers who qualify for the welcome offer free bet will also receive 10x free spins on Big Bass Splash. Each free spin is worth £0.10. Full T&Cs apply.
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Best Progressive Jackpot Slots
There are dozens of different progressive jackpots to choose from, so it’s important that you know exactly which ones are the best, which is why we put together our online casino reviews. After all, if you have the choice between a five-figure jackpot and an eight-figure one, you’d choose the bigger potential prize, right? We’ve put together a list of some of our favourite games for you to try at top UK online casinos.
We don't just roll the dice on casino payment methods
Every recommendation on Bookies.com is earned and tested by real experts across five weighted pillars before we put our name behind it.
Used 18 Times Today 18+ New players only. Min deposit £10 and £10 stake on slot games required. 100 Free Spins on Big Bass Splash credited automatically. Free Spins value: £0.10 each. Free Spins expire 48 hours after crediting. No wagering on Free Spins; winnings paid as cash. Full T&C's apply.
Mega Moolah
Mega Moolah is probably the most well-known progressive jackpot slot in the world. In 2015, Mega Moolah made headlines when a UK Betway player won the massive jackpot prize of over £15 million. The game comes with a cool safari theme, and it’s played on a simple grid with five reels and 25 paylines.
There are four progressive jackpot prizes, and they can be triggered at any time during gameplay. The special bonus wheel will appear on screen, and you’ll simply need to spin it to see if you’ve bagged one of the progressive jackpot prizes. Mega Moolah is available at lots of top online casinos including LeoVegas online casino.
Joker Millions
Joker Millions takes inspiration from retro-style slot games, and you’ll be looking out for symbols like cherries and bells to land small wins. But if you want to stand a chance at the biggest prize, you’ll have to wait for a Joker symbol to land on the grid. The Joker awards the respins feature, and the reels will continue to respin until no more Jokers land. If you fill up the entire grid, you’ll be awarded the progressive jackpot prize.
During normal gameplay, you can win by matching symbols on one of the 25 paylines, plus there are chances to get multipliers on your wins. UK casinos with no deposit bonuses often exclude this game from being played with bonus funds, but it's worth checking out if it's available to you.
Mega Fortune
Mega Fortune is a five-reel slot with 25 fixed paylines and an impressive RTP of 96.4%. To win the jackpot, you’ll have to get three or more of the special scatter symbols on a payline, and then the bonus game will open up. You’ll see three fortune wheels, and if you land on an arrow on all three of the wheels, you’ll bag the biggest jackpot amount.
There are also other chances to win by matching at least two of the standard symbols on one of the 25 paylines. This game is available at all top NetEnt casinos in the UK, such as Jackpot City.
Used 31 Times Today New UK based customers only. You must opt in (on registration form). Deposit & Stake Min £20. Debit card only (exclusions apply). 50 Free Spins credited daily over first 3 days, 24 hours apart. 150 Free Spins total (£0.10 per spin). No wagering requirements on Free Spins Winnings. Spins expire after 7 days. Full Terms
Book of Atem WOWpot!
The top jackpot prizes on the WOWpot! games can be just as big as the Mega Moolah slots. Book of Atem comes with a jungle theme, and you’ll have to visit the ancient ruins to hunt for wins. There are four jackpot prizes and to get into the jackpot round, you need to collect the bonus symbols. Once you have enough of them, the prize wheel will display on the screen and you can spin to see if you’ve won the jackpot.
Given its popularity as a slot game it's no surprise that many of the best UK online casinos offer Book of Atem WOWpot!, such as BetMGM.
Mega Moolah Isis
Ancient Egypt is one of the most popular slot game themes, so it’s no surprise that there’s a Mega Moolah game based on gods and pyramids. Mega Moolah Isis is one of the best progressive jackpot slots in this series, and just like the original slot, it can hold jackpot payouts of up to eight figures.
To win one of four jackpot prizes at the best online slots sites, you’ll have to wait until the money wheel triggers randomly, and spin to see where it lands. Even if you’re not lucky enough to win the big prizes, you can still look forward to generous payouts and features like free spins.
Used 22 Times Today #ad. 18+. UK only. From 17.02.2025. New Casino players only. Deposit (certain types excluded) and Bet £10+ on qualifying games to get 100 Free Spins (selected games, value £0.10 each, 48 hrs to accept, valid for 7 days). Restrictions and T&Cs apply. Please, Gamble Responsibly
Best UK Casinos for Progressive Jackpot Slots
Most of the best online casinos have at least a few progressive jackpot slots, but some of them have dozens! We’ve put together an online casino list of the very best sites, where you can enjoy the world’s biggest jackpot slot games and stand a chance to get really lucky.
Mr Vegas Progressive Jackpot Slots
All of the top progressive jackpot slots online are available at Mr Vegas Casino. In fact, there are over 10,000 online casino games to choose from, with several dozen of those being jackpot slots. A few or our favourite titles include Wolf Gold Power Jackpot, Mega Moolah titles including Immortal Romance Mega Moolah and Fortunium Gold Mega Moolah, plus games in the WOWpot! series which provide some of the biggest jackpots on the UK casino scene.
There are also exclusive MrVegas Jackpots that come in three different levels, with the biggest one reaching five figures. Get started with a 100% welcome bonus up to £50 plus 11 free spins and after that, you can play new slot games or live dealer games including gameshows.
Used 34 Times Today #ad. 18+. Gamble Responsibly. Begambleaware.org. The Welcome Bonus is only available to newly registered players who make a minimum initial deposit of £10. T&C's Apply
Fun Casino Progressive Jackpots
Fun Casino is home to more than a dozen progressive jackpot slots, including some of the world’s biggest titles. You can play games like Paddy’s Pot Mega Moolah, Atlantean Treasures Mega Moolah, Treasure Nile, and Book of Atem WOWpot!, plus there’s a great selection of regular slots from providers like Games Global, IGT, and Novomatic.
There are also classic casino table games like blackjack and online roulette at one of the best roulette sites for real money. There are also live dealer games and games you'll find at the best slingo sites plus a sports betting area - making it a top destination for gambling no matter what your preference is!
Used 24 Times Today #ad. 18+. Gamble Responsibly. Gambleaware.org. New players only | Deposit & wager at least £10 to get free spins | Free Spins winnings are cash | No max cash out | Eligibility is restricted for suspected abuse | Skrill deposits excluded | Free Spins value £0.10 per spin | Free Spins expire in 48 hours |
BetMGM Progressive Jackpot Slot Machines
As one of the world’s premier gambling brands, BetMGM UK treats players to loyalty points, prize draws and daily offers. The overall progressive jackpot prize pool sits at eight figures, so you have a chance of bagging a big win.
Some of the progressive slot machines at BetMGM Casino UK include the Mega Moolah and Age of the Gods series, plus there are Jackpot King games like The Goonies and Fishin’ Frenzy, where you could stand a chance to win up to seven figures. This Plinko casino also has exclusive titles, brand new games, and even a dedicated live casino section. plus you can get started with a massive 200 free spins on Big Bass Splash.
Used 20 Times Today New cust only. Opt-in required. Time to deposit/wager 7 days. Deposit £10 & wager 1x on casino games (wagering contributions vary) for 200 Free Spins worth 10p each on Big Bass Splash. 3 day reward expiry. 18+. T&Cs apply.
Pub Casino Jackpot Slots
This casino site comes with a fun theme to appeal to UK players, and of course they also have some of the best jackpot games. At Pub Casino, you can play games like Juicy Joker Mega Moolah and Mega Moolah Absolootly Mad, plus there are Rapid Fire Jackpots, popular slots like Eager Beavers and Mystery Mice, the Mega Ball casino game and a live casino where you can enjoy roulette and other table games at one of the best baccarat sites.
With a fun welcome offer to that nets you 50 cash spins when you wager £10 plus a modern site that’s ideal for mobile play, there are plenty of reasons to give Pub Casino a go.
Used 30 Times Today #ad.New customers only. Place a min £10 bet at min odds of 2.0. £40 worth of Free Bet Tokens awarded on bet settlement plus additional £20 Free Bet tokens will be credited on the 11th June. 6 x £10 each with betting restrictions. 7 day expiry. Debit Card deposits only (exclusions apply). 18+ GambleAware.org. Bet The Responsible Way Full Terms apply.
LeoVegas Jackpot Slots
If you’re a big fan of progressive jackpots, LeoVegas Online Casino might be the ideal place for you to play. The linked Jackpot King games like Mega Bars Big Hit and King Kong Cash Go Bananas can hold prizes of up to seven figures, as can the Mega Moolah and WOWpot! games.
We were also impressed to see a selection of LeoVegas Originals that aren’t available at other online casinos, plus there are Megaways slots, bingo rooms, brand new releases, and a whole lot of other options for you to choose from.
Used 24 Times Today New cust only. Opt in, deposit £10+ within 7 days of registering & wager 1x on eligible casino games within 7 days to get 50 Wager-Free Free Spins on Big Bass Splash. 3 day expiry. Wagering contributions vary. T&Cs & exclusions apply. 18+.
How Progressive Slots Work
There are two main types of jackpot slots that you’ll come across at online casinos: fixed jackpots and progressive jackpots. Fixed jackpots are exactly what they sound like - jackpot amounts that stay the same at all times. The maximum amount you can win on fixed jackpots is usually determined by your stake value. Progressive jackpots, on the other hand, increase all the time, so they can reach truly massive amounts of money before they're won.
On progressive jackpot slots, a small percentage of every losing bet contributes towards the prize pot, which is why you can sometimes see it increasing in front of your very eyes. These games are usually linked across multiple casinos that carry the game, meaning that thousands of people play progressive slots every day, making them some of the best payout slots UK players can find.
It could also be a jackpot that pays out on any game within a series or on any game from a certain provider.
The mechanism for triggering the jackpot win is slightly different on each slot game. We’ll go into more detail about this later, but for now it’s enough to understand that on some slots you can trigger the jackpot randomly on any spin (even if there are no winning combinations), while on others you’ll need to get a specific combination of special symbols.
Tips For How To Win Progressive Jackpots
The first thing you need to understand is that progressive jackpot slots at reputable online casinos all use Random Number Generator technology. This means that the games are fair, and there’s nothing you as a player can do to determine the outcome of the spins. That said, there are a few things you can do to give yourself a better chance of a jackpot win.
The first thing to do is check how much the progressive jackpot is standing at, before you play. If you’re aiming for a truly giant win, you might want to wait until the jackpot amount is very big. The other option is to choose a game with a smaller progressive jackpot prize (for example four figures rather than seven), as these tend to drop more often.
Some new casino sites even have daily progressive jackpots, and even though these might not be huge, you’ll have a better chance of winning, as they have to drop every single day or even more frequently in some instances.
It’s important to understand how a game works. Many progressive jackpots can trigger randomly on any spin, while others require you to land scatters and spin a prize wheel, or fill up the grid with special symbols to win the top prize.
If you’re comfortable doing so, you might want to increase your stake amount, as some slots link the jackpot prizes to your spin value, so by playing for bigger amounts, you stand a chance to win more money.
Finally, it’s important that you play responsibly at all times. You should set a personal limit and stick to it, or use the online casino’s built-in tools to set deposit, loss, or wagering limits. You can also set session time limits or a cooling off period to help you stay in control. You can find out more in our guide to responsible gambling.
Used 24 Times Today New cust only. Opt in, deposit £10+ within 7 days of registering & wager 1x on eligible casino games within 7 days to get 50 Wager-Free Free Spins on Big Bass Splash. 3 day expiry. Wagering contributions vary. T&Cs & exclusions apply. 18+.
Best Payment Methods For Progressive Slots
Before you can play any online progressive jackpot slots, you’ll need to add money to your account. Most independent casino sites UK offer a wide variety of methods that you can use, and each of them has its own pros and cons.
The most common method that most UK players tend to use for online casino deposits and withdrawals is a standard bank card (like Visa online casino or Mastercard casino). This is probably the simplest and most convenient way to transact, and it’s and extremely secure online casino payment. Just keep in mind that withdrawals might take a few days to reach you with a bank card, though.
If you don’t want to use your card, you can use bank transfer casino payments or Neosurf casinos to deposit and withdraw at most casino sites, but this method tends to have much longer timelines so that is something to consider when you're pulling money out of a casino.
E-wallets are also popular at UK online casinos. For example, you might be able to use Skrill casino, Neteller casino or PayPal casino UK payments. All of these support quick and secure payments, and don’t require you to share your bank details with the casino. One downside to e-wallets like Skrill casino deposits is that they’re not always accepted for claiming bonuses, so you might prefer to use your bank card when you’re claiming offers and then switch to your preferred method later on.
Some UK online casinos also offer mobile-friendly casino payment methods like Boku casino, Google Pay or Apple Pay casino UK, which are only available when you use your mobile browser the best casino apps for Android or iPhone casino apps.
Progressive Jackpot Slot Machines - Pros and Cons
While playing progressive jackpot slots might sound like a no-brainer, we have to let you know that these games have a few downsides too. We’ve rounded them up for you below so you can make up your own mind about whether or not you want to give these games a try.
| Pros | Cons |
|---|---|
| ✔️ Chance to win huge amounts of money | ❌ RTP is generally lower than other slots |
| ✔️ Gameplay is extra thrilling | ❌ Games might have fewer special features |
| ✔️ Lots of themes to choose from |
Used 25 Times Today New players. Choose bonus at signup. Wager bonus 10x. Any withdrawals void bonus. Valid 30 days. Deposit used 1st. Odds, bet & payment limits. T&Cs apply; 18+
Progressive Jackpot Casino Bonuses
A great way to kick off your online casino experience, and maybe even stand a chance at winning a progressive jackpot, is to claim online casino bonuses for new players. For example, as soon as you sign up and deposit, you might be eligible for a big deposit match, or up to as many as 50 free spins, 100 free spins or even 200 free spins to use on a popular game.
Bonuses aren’t just for new players, though, as regulars can also get offers like cashback, reloads, free spins no deposit bonuses, and entries into prize draws and tournaments.
Your online casino of choice might even have a loyalty or VIP program, to award the top-tier players with bespoke bonuses.
One thing to keep in mind is that all online casino promotions come with terms and conditions, including rules about which games the bonus cash can be used on. Before you claim an offer, you might want to read the exclusions in detail, as in some cases you might not be able to use the bonus money on progressive jackpot slots. You can check out our list of the best slot bonuses available at top UK online casinos.
Used 24 Times Today New members only, must opt in. Not valid with other Welcome Offer(s). Min £10 deposit & £10 wager on slots game(s). 30-day expiry from deposit. Free Spins on Eye Of Horus: Legacy Of Gold. 1p coin size, 10 lines. Play Responsibly. 18+ #AD
Progressive Jackpot Slots FAQs
What is a progressive jackpot in slots?
A progressive jackpot is a special type of slot game, where a small percentage of every winning bet goes towards the jackpot prize. Depending on the game, there might be multiple different jackpots, and they can trigger randomly, or by getting a certain combination of symbols.
What is the best progressive jackpot slot?
What are the odds of winning a progressive jackpot?
What is the biggest progressive jackpot slot online?
What casino is best for progressive jackpots?
Are progressive slots better than normal slots?
Can I really win a progressive jackpot?
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